From 74b93f736d07794bbb1b7a771a428f69a382ce68 Mon Sep 17 00:00:00 2001
From: Andy <33747619+VICTORYGS@users.noreply.github.com>
Date: Fri, 26 Aug 2022 09:09:00 +0800
Subject: [PATCH 1/2] =?UTF-8?q?vue=E6=96=87=E4=BB=B6=20id=20hash=20?=
 =?UTF-8?q?=E7=AE=97=E6=B3=95=E4=BF=AE=E6=94=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

改成计数标记id，之后转化为36进制缩短id字符长度
---
 src/index.ts | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index d7d43700e..55a12a832 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -3,8 +3,6 @@ import * as path from 'path'
 import * as qs from 'querystring'
 import * as loaderUtils from 'loader-utils'
 
-import hash = require('hash-sum')
-
 import { parse } from 'vue/compiler-sfc'
 import type {
   TemplateCompiler,
@@ -42,6 +40,7 @@ export interface VueLoaderOptions {
 }
 
 let errorEmitted = false
+let shortFilePathCache: Array<string> = []
 
 const exportHelperPath = JSON.stringify(require.resolve('./exportHelper'))
 
@@ -113,12 +112,9 @@ export default function loader(
   const rawShortFilePath = path
     .relative(rootContext || process.cwd(), filename)
     .replace(/^(\.\.[\/\\])+/, '')
-  const shortFilePath = rawShortFilePath.replace(/\\/g, '/')
-  const id = hash(
-    isProduction
-      ? shortFilePath + '\n' + source.replace(/\r\n/g, '\n')
-      : shortFilePath
-  )
+  const shortFilePath = rawShortFilePath.replace(/\\/g, '/');
+  shortFilePathCache.includes(shortFilePath) || shortFilePathCache.push(shortFilePath);
+  const id = shortFilePathCache.indexOf(shortFilePath).toString(36);
 
   // if the query has a type field, this is a language block request
   // e.g. foo.vue?type=template&id=xxxxx

From 7741e413ebd36c66e3a95cde23c96b6e27c6312f Mon Sep 17 00:00:00 2001
From: Andy <33747619+VICTORYGS@users.noreply.github.com>
Date: Mon, 29 Aug 2022 10:23:18 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E5=A4=8D=E7=94=A8=20shortFilePath=20?=
 =?UTF-8?q?=E8=AE=A1=E7=AE=97=E7=BB=93=E6=9E=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

复用 shortFilePath 计算结果，避免重复计算
---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 55a12a832..2127bfe6a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -243,7 +243,7 @@ export default function loader(
     // from the devtools.
     propsToAttach.push([
       `__file`,
-      JSON.stringify(rawShortFilePath.replace(/\\/g, '/')),
+      JSON.stringify(shortFilePath),
     ])
   } else if (options.exposeFilename) {
     // Libraries can opt-in to expose their components' filenames in production builds.